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B. Z. LIDDLE.

GRATE FORSTOVES. No. 246,796 Patented Sept. 6,1881.

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ROBERTHZ. LIDDLE, or ALBANY, NEW-YORK, ASSIGNOR TO JOHN s. PERRY, orsAME PLACE.

e RATE For: STOVES.

SPECIFICATION forming part of Letters Patent No. 246,796, datedSeptember 6, 1881.

Application filed April 25, 1881. (N0 model.) I

To all whom it may concern Be it known that I, ROBERT Z. LIDDLE, of thecity of Albany, in the county of Albany and State of New York, haveinvented a new and useful Improvement in Grates for Stoves, of which thefollowing is a specification. 7

It is the object of the present inventionto perfectly remove clinkers,ashes, and other refuse or burned fuel from the central portion of thefire-pot'of a stove, as well as from those portions adjacent the wallsof the fire-pot and between its downward-projectingfingers, without theuse of a poker or slicing-bar operated through an opening in the wall ofthe stove.

To accomplish the above-named object this invention provides two grates,or a grate and a disk, so constructed and arranged that they unite tosupport the burning fuel, and, by their movement in relation to eachother and to the fire-pot, compel and permit the refuse to pass downinto the ash-pit. One of these grates is arranged to be vibrated in ahorizontal plane, and is provided with a central opening, while theother grate or disk is located beneath such central opening, and isarranged to be dropped or swung downward, so as to uncover the centralopening and afford an unobstructed passage for the accumulated refuse inthe central portion of the fire-pot.

The invention is illustrated in the accompanying drawings, in whichFigure l is a sectional view of the grate, through the line a 00 of Fig.3, when mounted in a stove. Fig. 2 is a sectional view of the samethrough the line y y of Fig. 3; and Fig. 3 is a plan view of the same,the upper grate being broken away to show its supporting ring or frame.

In the drawings, A represents a vibrating grate, which is supported upona frame or ring, 13, which, in turn, is supported upon the basering 0 ofthe stove.

The frame B may be secured to the basering 0 in any desired manner, asby legs a a, 860., projecting downward and outward from the frame B andentered into corresponding sockets or depressions formed in the base-ring G, which arrangement will prevent the frame B from turning while thegrate A is vibrated to form it with a double incline or slope extendingfromabout the center or middle of its width downward, both toward itsinner and outer peripheries, the outer incline being preferablycorrugated, as shown in the drawings. This grate is retained in positionupon its frame or ring B by any convenient construction-as, forinstance, by a slight annularflange, 0, projecting downward from theouter edge of the grate, and a corresponding inner flange, or severalprojections, d d, &c.the projecting parts forming an annular recess intowhich the frame B fits loosely, so as to permit the grate to be easilyvibrated by means of a handle or shaker, e, operated through an openingin the wall of the stove.

D represents a drop or swing grate or disk, which is located beneath thecentral opening of the grate A, and is preferably of sufficient size tocover, or nearly cover, such opening. It is also preferred that theupper surface of this grate or disk should be crowning or somewhatspherical, so that the refuse thrown upon it from the inner periphery ofthe grate A will slide off from its edge. This grate l) is connected toand operated by a shaft, E, which is conveniently journaled below thebase-rin g 0, in the wall of'the ash-pit section, or in hangers castupon the base-rin g. The shaft is attached to opposite points on theperiphery of the grate or disk, it being so bent away from a straight 8line that when it is partially revolved it will drop or swing the grateaway from the central opening aboveit, so as to leave an unobstructedpassage from the fire-pot to the ashpit, as shown by dotted lines inFig. 2. 0 By the bending of the shaft on each side of its attachment tothe grate, to accomplish the above purpose, it follows that these bentportions of the shaft will also, by its partial revolution, he swungfrom beneath the central opening The grate D and its shaft E are mosteconomically cast in one piece, and, preferably, the attachments of theshaft to the grate are on one side of a line passing through the centerof the grate, by which arrangement the greater weight of the grate onthe dumping side of the shaft, and its less surface on the opposite sideof the shaft, assists and permits it to be swung down or dumped with butlittle lifting action upon the superimposed fire-bed.

The grate D may be a solid disk or plate, or it may be provided withopenings through it for the passage of air to the fire.

The shaft E is provided with a stop-projec tion, g, at one of itsjournal-bearings, which, by its contact with the wall of the hearing orsome adjacent part, prevents the shaft from turning further than isdesired, one-quarter of its revolution being sufficient to swing thegrate D into the position shown in dotted lines in Fig. 2.

In Fig. 2, G represents a section of the firepot of a stove, h being oneof a series of downwardly-projecting fingers.

I is the illuminated fire-pot section, H the ash-pit section, and J thebase of the stove.

When the grate A is vibrated by the shaker the ashes and clinkers aremoved by the double inclines on the surface of this grate both towardits outer and inner peripheries, the outer discharging over its edgeinto the ash-pit below, and the inner through the opening 0 between thegrates A and D, or onto the edge of thegrate D. During the vibration thecorrugated surface of the grate A, near its outer edge, greatlyfacilitates the outward discharge by presenting a resisting surface tothe falling ashes, &c., and compelling them to be moved with thevibration of the grate, and forcing them over its edge.

It is seen that the grate A is located directly under the fingers h andthe wall of the fire-pot, and that the continued vibration of this gratewill clear that portion, while the repeated dropping of the centralgrate, D, will remove all refuse which may accumulate in the centralpart of the fire-pot or be thrown upon this grate by the vibration ofthe grate A.

The shaft E is partially revolved to drop or swing the grate D by meansof a removable crank or wrench attached to the end a of the shaft.

What is claimed as new is-- 1. The combination, substantially asdescribed, of a grate or disk provided with a bent shaft and a grate-ring, whereby the disk is swung from under the central opening of thegrate-ring by means of the partial revolution of the shaft.

2. The combination of a grate or disk located beneath the centralopening of the'gratering of a stove and a shaft attached to the oppositeedges of such grate or disk, but off from a line passing through itscenter, substantially as and for the purpose described.

3. A vibrating grate, A, provided with fingers projecting from its innerperiphery, and having its upper surface inclined downward toward bothits outer and inner peripheries, and having its outer inclined surfacecorrugated, substantially as and for the purpose described.

4. In combination with a vibrating grate,A, provided with projections 01d, a stationary but removable ring or frame, B, substantially as and forthe purpose described.

5. In combination with a vibrating grate provided with a centralopening, a grate or disk located beneath such opening and attached to ashaft, substantially as described, whereby it can be swung from undersuch opening or returned to position by the partial revolution of theshaft, substantially as and for the purpose described.

ROBERT Z. LIDDLE.

Witnesses:

JOHN T. PERRY, ANDREW GRAHAM.

